package com.dsj.common.aspect;

import com.dsj.common.domain.LogDO;
import com.dsj.common.annotation.Log;
import com.dsj.common.service.LogService;
import com.dsj.common.utils.HttpContextUtils;
import com.dsj.common.utils.IPUtils;
import com.dsj.common.utils.JSONUtils;
import com.dsj.common.utils.ShiroUtils;
import com.dsj.system.domain.UserDO;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import javax.servlet.http.HttpServletRequest;
import java.lang.reflect.Method;
import java.util.Date;

@Aspect
@Component
public class LogAspect {

  private static final Logger logger = LoggerFactory.getLogger(LogAspect.class);

  @Autowired
  LogService logService;


  @Pointcut("@annotation(com.dsj.common.annotation.Log)")
  public void logPointCut() {
  }

  @Around("logPointCut()")
  public Object around(ProceedingJoinPoint point) throws Throwable {
    long beginTime = System.currentTimeMillis();
    // 执行方法
    Object result = point.proceed();
    // 执行时长(毫秒)
    long time = System.currentTimeMillis() - beginTime;
    //异步保存日志
    saveLog(point, time);
    return result;
  }

  void saveLog(ProceedingJoinPoint joinPoint, long time) {
    MethodSignature signature = (MethodSignature) joinPoint.getSignature();
    Method method = signature.getMethod();
    LogDO sysLog = new LogDO();
    Log syslog = method.getAnnotation(Log.class);
    if (syslog != null) {
      // 注解上的描述
      sysLog.setOperation(syslog.value());
    }
    // 请求的方法名
    String className = joinPoint.getTarget().getClass().getName();
    String methodName = signature.getName();
    sysLog.setMethod(className + "." + methodName + "()");
    // 请求的参数
    Object[] args = joinPoint.getArgs();
    try {
      String params = JSONUtils.beanToJson(args[0]).substring(0, 4999);
      sysLog.setParams(params);
    } catch (Exception e) {

    }
    // 获取request
    HttpServletRequest request = HttpContextUtils.getHttpServletRequest();
    // 设置IP地址
    sysLog.setIp(IPUtils.getIpAddr(request));
    // 用户名
    UserDO currUser = ShiroUtils.getUser();
    if (null == currUser) {
      if (null != sysLog.getParams()) {
        sysLog.setUserId(-1L);
        sysLog.setUsername(sysLog.getParams());
      } else {
        sysLog.setUserId(-1L);
        sysLog.setUsername("获取用户信息为空");
      }
    } else {
      sysLog.setUserId(ShiroUtils.getUserId());
      sysLog.setUsername(ShiroUtils.getUser().getUsername());
    }
    sysLog.setTime((int) time);
    // 系统当前时间
    Date date = new Date();
    sysLog.setGmtCreate(date);
    // 保存系统日志
    logService.save(sysLog);
  }
}
